At least one U.S. military serviceman has been arrested after raising concerns over another possible attack on Fort Hood, Fox News has learned exclusively.

According to an Army source, one AWOL soldier is in the custody of the Killeen Police Department near Fort Hood. He was not captured on base. According to another source, two other U.S. soldiers were also arrested earlier today after authorities recovered weapons and explosives.

Fox News has obtained the names of the three suspects, but is currently withholding that information.

It’s unclear if any possible attack was merely aspirational in nature.